Solve for x
x = \frac{29}{2} = 14\frac{1}{2} = 14.5
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12x-9-10x=20
Subtract 10x from both sides.
2x-9=20
Combine 12x and -10x to get 2x.
2x=20+9
Add 9 to both sides.
2x=29
Add 20 and 9 to get 29.
x=\frac{29}{2}
Divide both sides by 2.
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